Home / 282,801.34-390,262.35-155,475.82

Finding the Fourth Proportional to 282,801.34, 390,262.35 and 155,475.82

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Solution

The fourth proportional to 282,801.34, 390,262.35 and 155,475.82 is: 214,554.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,801.34 : 390,262.35 = 155,475.82 : x
  2. Step 2: Convert to fraction form
    282,801.34/390,262.35 = 155,475.82/x
  3. Step 3: Cross multiply
    282,801.34x = 390,262.35 × 155,475.82
  4. Step 4: Simplify right side
    282,801.34x = 60,676,358,881.38
  5. Step 5: Solve for x
    x = 60,676,358,881.38/282,801.34
  6. Step 6: Final answer
    x = 214,554.71

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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.