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Finding the Fourth Proportional to 307,300.68, 424,100.34 and 171,316.26

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Solution

The fourth proportional to 307,300.68, 424,100.34 and 171,316.26 is: 236,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,300.68 : 424,100.34 = 171,316.26 : x
  2. Step 2: Convert to fraction form
    307,300.68/424,100.34 = 171,316.26/x
  3. Step 3: Cross multiply
    307,300.68x = 424,100.34 × 171,316.26
  4. Step 4: Simplify right side
    307,300.68x = 72,655,284,113.53
  5. Step 5: Solve for x
    x = 72,655,284,113.53/307,300.68
  6. Step 6: Final answer
    x = 236,430.60

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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.