Home / 279,445.08-385,632.28-152,120.36

Finding the Fourth Proportional to 279,445.08, 385,632.28 and 152,120.36

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Solution

The fourth proportional to 279,445.08, 385,632.28 and 152,120.36 is: 209,925.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,445.08 : 385,632.28 = 152,120.36 : x
  2. Step 2: Convert to fraction form
    279,445.08/385,632.28 = 152,120.36/x
  3. Step 3: Cross multiply
    279,445.08x = 385,632.28 × 152,120.36
  4. Step 4: Simplify right side
    279,445.08x = 58,662,521,261.22
  5. Step 5: Solve for x
    x = 58,662,521,261.22/279,445.08
  6. Step 6: Final answer
    x = 209,925.05

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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.