Home / 282,853.92-390,337.20-155,536.32

Finding the Fourth Proportional to 282,853.92, 390,337.20 and 155,536.32

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Solution

The fourth proportional to 282,853.92, 390,337.20 and 155,536.32 is: 214,639.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,853.92 : 390,337.20 = 155,536.32 : x
  2. Step 2: Convert to fraction form
    282,853.92/390,337.20 = 155,536.32/x
  3. Step 3: Cross multiply
    282,853.92x = 390,337.20 × 155,536.32
  4. Step 4: Simplify right side
    282,853.92x = 60,711,611,647.10
  5. Step 5: Solve for x
    x = 60,711,611,647.10/282,853.92
  6. Step 6: Final answer
    x = 214,639.46

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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.