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Finding the Fourth Proportional to 307,329.06, 424,142.10 and 186,501.10

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Solution

The fourth proportional to 307,329.06, 424,142.10 and 186,501.10 is: 257,388.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,329.06 : 424,142.10 = 186,501.10 : x
  2. Step 2: Convert to fraction form
    307,329.06/424,142.10 = 186,501.10/x
  3. Step 3: Cross multiply
    307,329.06x = 424,142.10 × 186,501.10
  4. Step 4: Simplify right side
    307,329.06x = 79,102,968,206.31
  5. Step 5: Solve for x
    x = 79,102,968,206.31/307,329.06
  6. Step 6: Final answer
    x = 257,388.51

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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.