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Finding the Fourth Proportional to 395,262.20, 592,893.30 and 129,031.40

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Solution

The fourth proportional to 395,262.20, 592,893.30 and 129,031.40 is: 193,547.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,262.20 : 592,893.30 = 129,031.40 : x
  2. Step 2: Convert to fraction form
    395,262.20/592,893.30 = 129,031.40/x
  3. Step 3: Cross multiply
    395,262.20x = 592,893.30 × 129,031.40
  4. Step 4: Simplify right side
    395,262.20x = 76,501,852,549.62
  5. Step 5: Solve for x
    x = 76,501,852,549.62/395,262.20
  6. Step 6: Final answer
    x = 193,547.10

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1.5x scale

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.