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Finding the Fourth Proportional to 210,377.64, 290,320.89 and 124,367.63

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Solution

The fourth proportional to 210,377.64, 290,320.89 and 124,367.63 is: 171,627.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,377.64 : 290,320.89 = 124,367.63 : x
  2. Step 2: Convert to fraction form
    210,377.64/290,320.89 = 124,367.63/x
  3. Step 3: Cross multiply
    210,377.64x = 290,320.89 × 124,367.63
  4. Step 4: Simplify right side
    210,377.64x = 36,106,519,577.19
  5. Step 5: Solve for x
    x = 36,106,519,577.19/210,377.64
  6. Step 6: Final answer
    x = 171,627.17

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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.