Home / 307,330.06-424,143.48-186,502.10

Finding the Fourth Proportional to 307,330.06, 424,143.48 and 186,502.10

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Solution

The fourth proportional to 307,330.06, 424,143.48 and 186,502.10 is: 257,389.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,330.06 : 424,143.48 = 186,502.10 : x
  2. Step 2: Convert to fraction form
    307,330.06/424,143.48 = 186,502.10/x
  3. Step 3: Cross multiply
    307,330.06x = 424,143.48 × 186,502.10
  4. Step 4: Simplify right side
    307,330.06x = 79,103,649,721.31
  5. Step 5: Solve for x
    x = 79,103,649,721.31/307,330.06
  6. Step 6: Final answer
    x = 257,389.89

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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.