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Finding the Fourth Proportional to 437,345.40, 655,823.70 and 171,017.40

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Solution

The fourth proportional to 437,345.40, 655,823.70 and 171,017.40 is: 256,450.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,345.40 : 655,823.70 = 171,017.40 : x
  2. Step 2: Convert to fraction form
    437,345.40/655,823.70 = 171,017.40/x
  3. Step 3: Cross multiply
    437,345.40x = 655,823.70 × 171,017.40
  4. Step 4: Simplify right side
    437,345.40x = 112,157,264,032.38
  5. Step 5: Solve for x
    x = 112,157,264,032.38/437,345.40
  6. Step 6: Final answer
    x = 256,450.08

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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.