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Finding the Fourth Proportional to 145,071.60, 217,315.80 and 97,832.40

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Solution

The fourth proportional to 145,071.60, 217,315.80 and 97,832.40 is: 146,551.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,071.60 : 217,315.80 = 97,832.40 : x
  2. Step 2: Convert to fraction form
    145,071.60/217,315.80 = 97,832.40/x
  3. Step 3: Cross multiply
    145,071.60x = 217,315.80 × 97,832.40
  4. Step 4: Simplify right side
    145,071.60x = 21,260,526,271.92
  5. Step 5: Solve for x
    x = 21,260,526,271.92/145,071.60
  6. Step 6: Final answer
    x = 146,551.95

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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.