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Finding the Fourth Proportional to 303,543.90, 455,607.45 and 153,953.10

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Solution

The fourth proportional to 303,543.90, 455,607.45 and 153,953.10 is: 231,077.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,543.90 : 455,607.45 = 153,953.10 : x
  2. Step 2: Convert to fraction form
    303,543.90/455,607.45 = 153,953.10/x
  3. Step 3: Cross multiply
    303,543.90x = 455,607.45 × 153,953.10
  4. Step 4: Simplify right side
    303,543.90x = 70,142,179,310.60
  5. Step 5: Solve for x
    x = 70,142,179,310.60/303,543.90
  6. Step 6: Final answer
    x = 231,077.55

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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.