Home / 279,827.84-386,160-152,503.40

Finding the Fourth Proportional to 279,827.84, 386,160 and 152,503.40

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Solution

The fourth proportional to 279,827.84, 386,160 and 152,503.40 is: 210,453.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,827.84 : 386,160 = 152,503.40 : x
  2. Step 2: Convert to fraction form
    279,827.84/386,160 = 152,503.40/x
  3. Step 3: Cross multiply
    279,827.84x = 386,160 × 152,503.40
  4. Step 4: Simplify right side
    279,827.84x = 58,890,712,944
  5. Step 5: Solve for x
    x = 58,890,712,944/279,827.84
  6. Step 6: Final answer
    x = 210,453.37

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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.