Home / 282,776.42-390,238.98-153,723.62

Finding the Fourth Proportional to 282,776.42, 390,238.98 and 153,723.62

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Solution

The fourth proportional to 282,776.42, 390,238.98 and 153,723.62 is: 212,142.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,776.42 : 390,238.98 = 153,723.62 : x
  2. Step 2: Convert to fraction form
    282,776.42/390,238.98 = 153,723.62/x
  3. Step 3: Cross multiply
    282,776.42x = 390,238.98 × 153,723.62
  4. Step 4: Simplify right side
    282,776.42x = 59,988,948,670.71
  5. Step 5: Solve for x
    x = 59,988,948,670.71/282,776.42
  6. Step 6: Final answer
    x = 212,142.68

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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.