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Finding the Fourth Proportional to 346,542.75, 478,230.44 and 187,566.75

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Solution

The fourth proportional to 346,542.75, 478,230.44 and 187,566.75 is: 258,842.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,542.75 : 478,230.44 = 187,566.75 : x
  2. Step 2: Convert to fraction form
    346,542.75/478,230.44 = 187,566.75/x
  3. Step 3: Cross multiply
    346,542.75x = 478,230.44 × 187,566.75
  4. Step 4: Simplify right side
    346,542.75x = 89,700,128,444.04
  5. Step 5: Solve for x
    x = 89,700,128,444.04/346,542.75
  6. Step 6: Final answer
    x = 258,842.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.