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Finding the Fourth Proportional to 306,005.80, 459,008.70 and 95,643.40

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Solution

The fourth proportional to 306,005.80, 459,008.70 and 95,643.40 is: 143,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,005.80 : 459,008.70 = 95,643.40 : x
  2. Step 2: Convert to fraction form
    306,005.80/459,008.70 = 95,643.40/x
  3. Step 3: Cross multiply
    306,005.80x = 459,008.70 × 95,643.40
  4. Step 4: Simplify right side
    306,005.80x = 43,901,152,697.58
  5. Step 5: Solve for x
    x = 43,901,152,697.58/306,005.80
  6. Step 6: Final answer
    x = 143,465.10

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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.