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Finding the Fourth Proportional to 303,572.83, 455,316.46 and 190,909.63

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Solution

The fourth proportional to 303,572.83, 455,316.46 and 190,909.63 is: 286,337.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,572.83 : 455,316.46 = 190,909.63 : x
  2. Step 2: Convert to fraction form
    303,572.83/455,316.46 = 190,909.63/x
  3. Step 3: Cross multiply
    303,572.83x = 455,316.46 × 190,909.63
  4. Step 4: Simplify right side
    303,572.83x = 86,924,296,911.51
  5. Step 5: Solve for x
    x = 86,924,296,911.51/303,572.83
  6. Step 6: Final answer
    x = 286,337.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.