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Finding the Fourth Proportional to 369,886.68, 510,443.82 and 256,775.04

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Solution

The fourth proportional to 369,886.68, 510,443.82 and 256,775.04 is: 354,349.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,886.68 : 510,443.82 = 256,775.04 : x
  2. Step 2: Convert to fraction form
    369,886.68/510,443.82 = 256,775.04/x
  3. Step 3: Cross multiply
    369,886.68x = 510,443.82 × 256,775.04
  4. Step 4: Simplify right side
    369,886.68x = 131,069,232,298.25
  5. Step 5: Solve for x
    x = 131,069,232,298.25/369,886.68
  6. Step 6: Final answer
    x = 354,349.70

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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.