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Finding the Fourth Proportional to 500,148.56, 750,224.76 and 121,068.68

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Solution

The fourth proportional to 500,148.56, 750,224.76 and 121,068.68 is: 181,603.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,148.56 : 750,224.76 = 121,068.68 : x
  2. Step 2: Convert to fraction form
    500,148.56/750,224.76 = 121,068.68/x
  3. Step 3: Cross multiply
    500,148.56x = 750,224.76 × 121,068.68
  4. Step 4: Simplify right side
    500,148.56x = 90,828,717,531.89
  5. Step 5: Solve for x
    x = 90,828,717,531.89/500,148.56
  6. Step 6: Final answer
    x = 181,603.48

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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.