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Finding the Fourth Proportional to 283,034.84, 390,590.60 and 153,976.13

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Solution

The fourth proportional to 283,034.84, 390,590.60 and 153,976.13 is: 212,488.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,034.84 : 390,590.60 = 153,976.13 : x
  2. Step 2: Convert to fraction form
    283,034.84/390,590.60 = 153,976.13/x
  3. Step 3: Cross multiply
    283,034.84x = 390,590.60 × 153,976.13
  4. Step 4: Simplify right side
    283,034.84x = 60,141,626,279.54
  5. Step 5: Solve for x
    x = 60,141,626,279.54/283,034.84
  6. Step 6: Final answer
    x = 212,488.42

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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.