Home / 342,928.18-473,365.11-279,155.26

Finding the Fourth Proportional to 342,928.18, 473,365.11 and 279,155.26

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Solution

The fourth proportional to 342,928.18, 473,365.11 and 279,155.26 is: 385,335.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,928.18 : 473,365.11 = 279,155.26 : x
  2. Step 2: Convert to fraction form
    342,928.18/473,365.11 = 279,155.26/x
  3. Step 3: Cross multiply
    342,928.18x = 473,365.11 × 279,155.26
  4. Step 4: Simplify right side
    342,928.18x = 132,142,360,356.98
  5. Step 5: Solve for x
    x = 132,142,360,356.98/342,928.18
  6. Step 6: Final answer
    x = 385,335.38

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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.