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Finding the Fourth Proportional to 506,168.16, 698,482.08 and 279,800.16

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Solution

The fourth proportional to 506,168.16, 698,482.08 and 279,800.16 is: 386,107.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,168.16 : 698,482.08 = 279,800.16 : x
  2. Step 2: Convert to fraction form
    506,168.16/698,482.08 = 279,800.16/x
  3. Step 3: Cross multiply
    506,168.16x = 698,482.08 × 279,800.16
  4. Step 4: Simplify right side
    506,168.16x = 195,435,397,741.13
  5. Step 5: Solve for x
    x = 195,435,397,741.13/506,168.16
  6. Step 6: Final answer
    x = 386,107.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.