Home / 346,945.72-478,803.38-210,957.15

Finding the Fourth Proportional to 346,945.72, 478,803.38 and 210,957.15

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Solution

The fourth proportional to 346,945.72, 478,803.38 and 210,957.15 is: 291,131.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,945.72 : 478,803.38 = 210,957.15 : x
  2. Step 2: Convert to fraction form
    346,945.72/478,803.38 = 210,957.15/x
  3. Step 3: Cross multiply
    346,945.72x = 478,803.38 × 210,957.15
  4. Step 4: Simplify right side
    346,945.72x = 101,006,995,400.38
  5. Step 5: Solve for x
    x = 101,006,995,400.38/346,945.72
  6. Step 6: Final answer
    x = 291,131.98

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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.