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Finding the Fourth Proportional to 315,350.80, 473,026.20 and 259,363.60

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Solution

The fourth proportional to 315,350.80, 473,026.20 and 259,363.60 is: 389,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,350.80 : 473,026.20 = 259,363.60 : x
  2. Step 2: Convert to fraction form
    315,350.80/473,026.20 = 259,363.60/x
  3. Step 3: Cross multiply
    315,350.80x = 473,026.20 × 259,363.60
  4. Step 4: Simplify right side
    315,350.80x = 122,685,778,126.32
  5. Step 5: Solve for x
    x = 122,685,778,126.32/315,350.80
  6. Step 6: Final answer
    x = 389,045.40

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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.