Home / 386,938.10-579,946.35-162,298.10

Finding the Fourth Proportional to 386,938.10, 579,946.35 and 162,298.10

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Solution

The fourth proportional to 386,938.10, 579,946.35 and 162,298.10 is: 243,253.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,938.10 : 579,946.35 = 162,298.10 : x
  2. Step 2: Convert to fraction form
    386,938.10/579,946.35 = 162,298.10/x
  3. Step 3: Cross multiply
    386,938.10x = 579,946.35 × 162,298.10
  4. Step 4: Simplify right side
    386,938.10x = 94,124,190,706.94
  5. Step 5: Solve for x
    x = 94,124,190,706.94/386,938.10
  6. Step 6: Final answer
    x = 243,253.87

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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.