Home / 346,575.18-478,074.22-208,658.23

Finding the Fourth Proportional to 346,575.18, 478,074.22 and 208,658.23

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Solution

The fourth proportional to 346,575.18, 478,074.22 and 208,658.23 is: 287,828.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,575.18 : 478,074.22 = 208,658.23 : x
  2. Step 2: Convert to fraction form
    346,575.18/478,074.22 = 208,658.23/x
  3. Step 3: Cross multiply
    346,575.18x = 478,074.22 × 208,658.23
  4. Step 4: Simplify right side
    346,575.18x = 99,754,120,553.83
  5. Step 5: Solve for x
    x = 99,754,120,553.83/346,575.18
  6. Step 6: Final answer
    x = 287,828.23

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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.