Home / 346,574.18-478,072.85-208,657.23

Finding the Fourth Proportional to 346,574.18, 478,072.85 and 208,657.23

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Solution

The fourth proportional to 346,574.18, 478,072.85 and 208,657.23 is: 287,826.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,574.18 : 478,072.85 = 208,657.23 : x
  2. Step 2: Convert to fraction form
    346,574.18/478,072.85 = 208,657.23/x
  3. Step 3: Cross multiply
    346,574.18x = 478,072.85 × 208,657.23
  4. Step 4: Simplify right side
    346,574.18x = 99,753,355,575.92
  5. Step 5: Solve for x
    x = 99,753,355,575.92/346,574.18
  6. Step 6: Final answer
    x = 287,826.86

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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.