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Finding the Fourth Proportional to 343,430.48, 514,747.56 and 130,062.80

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Solution

The fourth proportional to 343,430.48, 514,747.56 and 130,062.80 is: 194,943.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,430.48 : 514,747.56 = 130,062.80 : x
  2. Step 2: Convert to fraction form
    343,430.48/514,747.56 = 130,062.80/x
  3. Step 3: Cross multiply
    343,430.48x = 514,747.56 × 130,062.80
  4. Step 4: Simplify right side
    343,430.48x = 66,949,508,946.77
  5. Step 5: Solve for x
    x = 66,949,508,946.77/343,430.48
  6. Step 6: Final answer
    x = 194,943.41

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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.