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Finding the Fourth Proportional to 155,368, 214,408.08 and 88,300

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Solution

The fourth proportional to 155,368, 214,408.08 and 88,300 is: 121,854.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,368 : 214,408.08 = 88,300 : x
  2. Step 2: Convert to fraction form
    155,368/214,408.08 = 88,300/x
  3. Step 3: Cross multiply
    155,368x = 214,408.08 × 88,300
  4. Step 4: Simplify right side
    155,368x = 18,932,233,464
  5. Step 5: Solve for x
    x = 18,932,233,464/155,368
  6. Step 6: Final answer
    x = 121,854.14

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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.