Home / 372,001.20-558,001.80-239,031.60

Finding the Fourth Proportional to 372,001.20, 558,001.80 and 239,031.60

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Solution

The fourth proportional to 372,001.20, 558,001.80 and 239,031.60 is: 358,547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,001.20 : 558,001.80 = 239,031.60 : x
  2. Step 2: Convert to fraction form
    372,001.20/558,001.80 = 239,031.60/x
  3. Step 3: Cross multiply
    372,001.20x = 558,001.80 × 239,031.60
  4. Step 4: Simplify right side
    372,001.20x = 133,380,063,056.88
  5. Step 5: Solve for x
    x = 133,380,063,056.88/372,001.20
  6. Step 6: Final answer
    x = 358,547.40

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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.