Home / 282,531.68-389,900.75-153,470.11

Finding the Fourth Proportional to 282,531.68, 389,900.75 and 153,470.11

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Solution

The fourth proportional to 282,531.68, 389,900.75 and 153,470.11 is: 211,792.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,531.68 : 389,900.75 = 153,470.11 : x
  2. Step 2: Convert to fraction form
    282,531.68/389,900.75 = 153,470.11/x
  3. Step 3: Cross multiply
    282,531.68x = 389,900.75 × 153,470.11
  4. Step 4: Simplify right side
    282,531.68x = 59,838,110,224.23
  5. Step 5: Solve for x
    x = 59,838,110,224.23/282,531.68
  6. Step 6: Final answer
    x = 211,792.57

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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.