Home / 282,826.60-390,290.72-155,501.20

Finding the Fourth Proportional to 282,826.60, 390,290.72 and 155,501.20

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Solution

The fourth proportional to 282,826.60, 390,290.72 and 155,501.20 is: 214,586.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,826.60 : 390,290.72 = 155,501.20 : x
  2. Step 2: Convert to fraction form
    282,826.60/390,290.72 = 155,501.20/x
  3. Step 3: Cross multiply
    282,826.60x = 390,290.72 × 155,501.20
  4. Step 4: Simplify right side
    282,826.60x = 60,690,675,308.86
  5. Step 5: Solve for x
    x = 60,690,675,308.86/282,826.60
  6. Step 6: Final answer
    x = 214,586.16

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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.