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Finding the Fourth Proportional to 218,051.52, 301,008.28 and 153,578.76

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Solution

The fourth proportional to 218,051.52, 301,008.28 and 153,578.76 is: 212,007.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,051.52 : 301,008.28 = 153,578.76 : x
  2. Step 2: Convert to fraction form
    218,051.52/301,008.28 = 153,578.76/x
  3. Step 3: Cross multiply
    218,051.52x = 301,008.28 × 153,578.76
  4. Step 4: Simplify right side
    218,051.52x = 46,228,478,392.13
  5. Step 5: Solve for x
    x = 46,228,478,392.13/218,051.52
  6. Step 6: Final answer
    x = 212,007.14

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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.