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Finding the Fourth Proportional to 453,125.60, 679,688.40 and 157,637.60

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Solution

The fourth proportional to 453,125.60, 679,688.40 and 157,637.60 is: 236,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,125.60 : 679,688.40 = 157,637.60 : x
  2. Step 2: Convert to fraction form
    453,125.60/679,688.40 = 157,637.60/x
  3. Step 3: Cross multiply
    453,125.60x = 679,688.40 × 157,637.60
  4. Step 4: Simplify right side
    453,125.60x = 107,144,448,123.84
  5. Step 5: Solve for x
    x = 107,144,448,123.84/453,125.60
  6. Step 6: Final answer
    x = 236,456.40

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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.