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Finding the Fourth Proportional to 245,307.77, 338,552.76 and 136,422.95

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Solution

The fourth proportional to 245,307.77, 338,552.76 and 136,422.95 is: 188,279.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,307.77 : 338,552.76 = 136,422.95 : x
  2. Step 2: Convert to fraction form
    245,307.77/338,552.76 = 136,422.95/x
  3. Step 3: Cross multiply
    245,307.77x = 338,552.76 × 136,422.95
  4. Step 4: Simplify right side
    245,307.77x = 46,186,364,557.08
  5. Step 5: Solve for x
    x = 46,186,364,557.08/245,307.77
  6. Step 6: Final answer
    x = 188,279.26

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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.