Home / 282,838.90-390,317.61-155,522.74

Finding the Fourth Proportional to 282,838.90, 390,317.61 and 155,522.74

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Solution

The fourth proportional to 282,838.90, 390,317.61 and 155,522.74 is: 214,621.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,838.90 : 390,317.61 = 155,522.74 : x
  2. Step 2: Convert to fraction form
    282,838.90/390,317.61 = 155,522.74/x
  3. Step 3: Cross multiply
    282,838.90x = 390,317.61 × 155,522.74
  4. Step 4: Simplify right side
    282,838.90x = 60,703,264,177.45
  5. Step 5: Solve for x
    x = 60,703,264,177.45/282,838.90
  6. Step 6: Final answer
    x = 214,621.34

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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.