Home / 243,702.16-336,307.08-136,272.40

Finding the Fourth Proportional to 243,702.16, 336,307.08 and 136,272.40

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Solution

The fourth proportional to 243,702.16, 336,307.08 and 136,272.40 is: 188,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,702.16 : 336,307.08 = 136,272.40 : x
  2. Step 2: Convert to fraction form
    243,702.16/336,307.08 = 136,272.40/x
  3. Step 3: Cross multiply
    243,702.16x = 336,307.08 × 136,272.40
  4. Step 4: Simplify right side
    243,702.16x = 45,829,372,928.59
  5. Step 5: Solve for x
    x = 45,829,372,928.59/243,702.16
  6. Step 6: Final answer
    x = 188,054.85

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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.