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Finding the Fourth Proportional to 282,841.83, 390,328.35 and 153,787.65

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Solution

The fourth proportional to 282,841.83, 390,328.35 and 153,787.65 is: 212,230.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,841.83 : 390,328.35 = 153,787.65 : x
  2. Step 2: Convert to fraction form
    282,841.83/390,328.35 = 153,787.65/x
  3. Step 3: Cross multiply
    282,841.83x = 390,328.35 × 153,787.65
  4. Step 4: Simplify right side
    282,841.83x = 60,027,679,674.88
  5. Step 5: Solve for x
    x = 60,027,679,674.88/282,841.83
  6. Step 6: Final answer
    x = 212,230.56

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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.