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Finding the Fourth Proportional to 253,376.43, 349,603.95 and 151,386.57

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Solution

The fourth proportional to 253,376.43, 349,603.95 and 151,386.57 is: 208,880.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,376.43 : 349,603.95 = 151,386.57 : x
  2. Step 2: Convert to fraction form
    253,376.43/349,603.95 = 151,386.57/x
  3. Step 3: Cross multiply
    253,376.43x = 349,603.95 × 151,386.57
  4. Step 4: Simplify right side
    253,376.43x = 52,925,342,848.95
  5. Step 5: Solve for x
    x = 52,925,342,848.95/253,376.43
  6. Step 6: Final answer
    x = 208,880.29

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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.