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Finding the Fourth Proportional to 341,990.40, 512,985.06 and 92,672.40

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Solution

The fourth proportional to 341,990.40, 512,985.06 and 92,672.40 is: 139,008.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,990.40 : 512,985.06 = 92,672.40 : x
  2. Step 2: Convert to fraction form
    341,990.40/512,985.06 = 92,672.40/x
  3. Step 3: Cross multiply
    341,990.40x = 512,985.06 × 92,672.40
  4. Step 4: Simplify right side
    341,990.40x = 47,539,556,674.34
  5. Step 5: Solve for x
    x = 47,539,556,674.34/341,990.40
  6. Step 6: Final answer
    x = 139,008.45

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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.