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Finding the Fourth Proportional to 385,302.80, 577,781.40 and 174,832.40

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Solution

The fourth proportional to 385,302.80, 577,781.40 and 174,832.40 is: 262,170.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,302.80 : 577,781.40 = 174,832.40 : x
  2. Step 2: Convert to fraction form
    385,302.80/577,781.40 = 174,832.40/x
  3. Step 3: Cross multiply
    385,302.80x = 577,781.40 × 174,832.40
  4. Step 4: Simplify right side
    385,302.80x = 101,014,908,837.36
  5. Step 5: Solve for x
    x = 101,014,908,837.36/385,302.80
  6. Step 6: Final answer
    x = 262,170.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.