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Finding the Fourth Proportional to 369,888.18, 510,445.89 and 256,776.54

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Solution

The fourth proportional to 369,888.18, 510,445.89 and 256,776.54 is: 354,351.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,888.18 : 510,445.89 = 256,776.54 : x
  2. Step 2: Convert to fraction form
    369,888.18/510,445.89 = 256,776.54/x
  3. Step 3: Cross multiply
    369,888.18x = 510,445.89 × 256,776.54
  4. Step 4: Simplify right side
    369,888.18x = 131,070,529,491.42
  5. Step 5: Solve for x
    x = 131,070,529,491.42/369,888.18
  6. Step 6: Final answer
    x = 354,351.77

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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.