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Finding the Fourth Proportional to 479,681.54, 719,281.33 and 159,720.30

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Solution

The fourth proportional to 479,681.54, 719,281.33 and 159,720.30 is: 239,500.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,681.54 : 719,281.33 = 159,720.30 : x
  2. Step 2: Convert to fraction form
    479,681.54/719,281.33 = 159,720.30/x
  3. Step 3: Cross multiply
    479,681.54x = 719,281.33 × 159,720.30
  4. Step 4: Simplify right side
    479,681.54x = 114,883,829,412.70
  5. Step 5: Solve for x
    x = 114,883,829,412.70/479,681.54
  6. Step 6: Final answer
    x = 239,500.21

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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.