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Finding the Fourth Proportional to 406,152.40, 609,060.92 and 153,389.88

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Solution

The fourth proportional to 406,152.40, 609,060.92 and 153,389.88 is: 230,021.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,152.40 : 609,060.92 = 153,389.88 : x
  2. Step 2: Convert to fraction form
    406,152.40/609,060.92 = 153,389.88/x
  3. Step 3: Cross multiply
    406,152.40x = 609,060.92 × 153,389.88
  4. Step 4: Simplify right side
    406,152.40x = 93,423,781,431.49
  5. Step 5: Solve for x
    x = 93,423,781,431.49/406,152.40
  6. Step 6: Final answer
    x = 230,021.49

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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.