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Finding the Fourth Proportional to 145,644.76, 218,465.29 and 79,506.24

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Solution

The fourth proportional to 145,644.76, 218,465.29 and 79,506.24 is: 119,258.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,644.76 : 218,465.29 = 79,506.24 : x
  2. Step 2: Convert to fraction form
    145,644.76/218,465.29 = 79,506.24/x
  3. Step 3: Cross multiply
    145,644.76x = 218,465.29 × 79,506.24
  4. Step 4: Simplify right side
    145,644.76x = 17,369,353,778.41
  5. Step 5: Solve for x
    x = 17,369,353,778.41/145,644.76
  6. Step 6: Final answer
    x = 119,258.35

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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.