Home / 346,749.68-478,508.28-193,790.72

Finding the Fourth Proportional to 346,749.68, 478,508.28 and 193,790.72

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Solution

The fourth proportional to 346,749.68, 478,508.28 and 193,790.72 is: 267,427.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,749.68 : 478,508.28 = 193,790.72 : x
  2. Step 2: Convert to fraction form
    346,749.68/478,508.28 = 193,790.72/x
  3. Step 3: Cross multiply
    346,749.68x = 478,508.28 × 193,790.72
  4. Step 4: Simplify right side
    346,749.68x = 92,730,464,107.16
  5. Step 5: Solve for x
    x = 92,730,464,107.16/346,749.68
  6. Step 6: Final answer
    x = 267,427.68

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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.