Home / 279,259.79-385,362.18-156,740.68

Finding the Fourth Proportional to 279,259.79, 385,362.18 and 156,740.68

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Solution

The fourth proportional to 279,259.79, 385,362.18 and 156,740.68 is: 216,292.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,259.79 : 385,362.18 = 156,740.68 : x
  2. Step 2: Convert to fraction form
    279,259.79/385,362.18 = 156,740.68/x
  3. Step 3: Cross multiply
    279,259.79x = 385,362.18 × 156,740.68
  4. Step 4: Simplify right side
    279,259.79x = 60,401,929,176.08
  5. Step 5: Solve for x
    x = 60,401,929,176.08/279,259.79
  6. Step 6: Final answer
    x = 216,292.97

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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.