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Finding the Fourth Proportional to 307,875.54, 424,875.45 and 171,904.89

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Solution

The fourth proportional to 307,875.54, 424,875.45 and 171,904.89 is: 237,232.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,875.54 : 424,875.45 = 171,904.89 : x
  2. Step 2: Convert to fraction form
    307,875.54/424,875.45 = 171,904.89/x
  3. Step 3: Cross multiply
    307,875.54x = 424,875.45 × 171,904.89
  4. Step 4: Simplify right side
    307,875.54x = 73,038,167,495.95
  5. Step 5: Solve for x
    x = 73,038,167,495.95/307,875.54
  6. Step 6: Final answer
    x = 237,232.77

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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.