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Finding the Fourth Proportional to 306,258, 459,480.18 and 156,603.36

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Solution

The fourth proportional to 306,258, 459,480.18 and 156,603.36 is: 234,952.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,258 : 459,480.18 = 156,603.36 : x
  2. Step 2: Convert to fraction form
    306,258/459,480.18 = 156,603.36/x
  3. Step 3: Cross multiply
    306,258x = 459,480.18 × 156,603.36
  4. Step 4: Simplify right side
    306,258x = 71,956,140,041.40
  5. Step 5: Solve for x
    x = 71,956,140,041.40/306,258
  6. Step 6: Final answer
    x = 234,952.69

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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.