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Finding the Fourth Proportional to 364,987.40, 547,890.70 and 282,248.20

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Solution

The fourth proportional to 364,987.40, 547,890.70 and 282,248.20 is: 423,689.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,987.40 : 547,890.70 = 282,248.20 : x
  2. Step 2: Convert to fraction form
    364,987.40/547,890.70 = 282,248.20/x
  3. Step 3: Cross multiply
    364,987.40x = 547,890.70 × 282,248.20
  4. Step 4: Simplify right side
    364,987.40x = 154,641,163,871.74
  5. Step 5: Solve for x
    x = 154,641,163,871.74/364,987.40
  6. Step 6: Final answer
    x = 423,689.05

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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.