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Finding the Fourth Proportional to 282,006.10, 423,009.15 and 240,015.70

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Solution

The fourth proportional to 282,006.10, 423,009.15 and 240,015.70 is: 360,023.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,006.10 : 423,009.15 = 240,015.70 : x
  2. Step 2: Convert to fraction form
    282,006.10/423,009.15 = 240,015.70/x
  3. Step 3: Cross multiply
    282,006.10x = 423,009.15 × 240,015.70
  4. Step 4: Simplify right side
    282,006.10x = 101,528,837,243.66
  5. Step 5: Solve for x
    x = 101,528,837,243.66/282,006.10
  6. Step 6: Final answer
    x = 360,023.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.