Home / 349,921.80-524,882.70-139,710.60

Finding the Fourth Proportional to 349,921.80, 524,882.70 and 139,710.60

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Solution

The fourth proportional to 349,921.80, 524,882.70 and 139,710.60 is: 209,565.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,921.80 : 524,882.70 = 139,710.60 : x
  2. Step 2: Convert to fraction form
    349,921.80/524,882.70 = 139,710.60/x
  3. Step 3: Cross multiply
    349,921.80x = 524,882.70 × 139,710.60
  4. Step 4: Simplify right side
    349,921.80x = 73,331,676,946.62
  5. Step 5: Solve for x
    x = 73,331,676,946.62/349,921.80
  6. Step 6: Final answer
    x = 209,565.90

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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.