Home / 447,005.40-670,508.10-147,532.20

Finding the Fourth Proportional to 447,005.40, 670,508.10 and 147,532.20

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Solution

The fourth proportional to 447,005.40, 670,508.10 and 147,532.20 is: 221,298.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,005.40 : 670,508.10 = 147,532.20 : x
  2. Step 2: Convert to fraction form
    447,005.40/670,508.10 = 147,532.20/x
  3. Step 3: Cross multiply
    447,005.40x = 670,508.10 × 147,532.20
  4. Step 4: Simplify right side
    447,005.40x = 98,921,535,110.82
  5. Step 5: Solve for x
    x = 98,921,535,110.82/447,005.40
  6. Step 6: Final answer
    x = 221,298.30

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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.