Home / 282,827.60-390,292.10-155,502.20

Finding the Fourth Proportional to 282,827.60, 390,292.10 and 155,502.20

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Solution

The fourth proportional to 282,827.60, 390,292.10 and 155,502.20 is: 214,587.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,827.60 : 390,292.10 = 155,502.20 : x
  2. Step 2: Convert to fraction form
    282,827.60/390,292.10 = 155,502.20/x
  3. Step 3: Cross multiply
    282,827.60x = 390,292.10 × 155,502.20
  4. Step 4: Simplify right side
    282,827.60x = 60,691,280,192.62
  5. Step 5: Solve for x
    x = 60,691,280,192.62/282,827.60
  6. Step 6: Final answer
    x = 214,587.54

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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.