Home / 282,785.40-390,251.37-153,732.60

Finding the Fourth Proportional to 282,785.40, 390,251.37 and 153,732.60

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Solution

The fourth proportional to 282,785.40, 390,251.37 and 153,732.60 is: 212,155.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,785.40 : 390,251.37 = 153,732.60 : x
  2. Step 2: Convert to fraction form
    282,785.40/390,251.37 = 153,732.60/x
  3. Step 3: Cross multiply
    282,785.40x = 390,251.37 × 153,732.60
  4. Step 4: Simplify right side
    282,785.40x = 59,994,357,763.66
  5. Step 5: Solve for x
    x = 59,994,357,763.66/282,785.40
  6. Step 6: Final answer
    x = 212,155.08

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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.