Home / 282,916.87-390,417.48-155,592.57

Finding the Fourth Proportional to 282,916.87, 390,417.48 and 155,592.57

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Solution

The fourth proportional to 282,916.87, 390,417.48 and 155,592.57 is: 214,713.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,916.87 : 390,417.48 = 155,592.57 : x
  2. Step 2: Convert to fraction form
    282,916.87/390,417.48 = 155,592.57/x
  3. Step 3: Cross multiply
    282,916.87x = 390,417.48 × 155,592.57
  4. Step 4: Simplify right side
    282,916.87x = 60,746,059,086.12
  5. Step 5: Solve for x
    x = 60,746,059,086.12/282,916.87
  6. Step 6: Final answer
    x = 214,713.46

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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.