Home / 283,331.24-390,999.71-156,011.39

Finding the Fourth Proportional to 283,331.24, 390,999.71 and 156,011.39

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Solution

The fourth proportional to 283,331.24, 390,999.71 and 156,011.39 is: 215,297.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,331.24 : 390,999.71 = 156,011.39 : x
  2. Step 2: Convert to fraction form
    283,331.24/390,999.71 = 156,011.39/x
  3. Step 3: Cross multiply
    283,331.24x = 390,999.71 × 156,011.39
  4. Step 4: Simplify right side
    283,331.24x = 61,000,406,681.73
  5. Step 5: Solve for x
    x = 61,000,406,681.73/283,331.24
  6. Step 6: Final answer
    x = 215,297.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.