Home / 315,170.40-434,935.16-171,931.02

Finding the Fourth Proportional to 315,170.40, 434,935.16 and 171,931.02

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Solution

The fourth proportional to 315,170.40, 434,935.16 and 171,931.02 is: 237,264.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,170.40 : 434,935.16 = 171,931.02 : x
  2. Step 2: Convert to fraction form
    315,170.40/434,935.16 = 171,931.02/x
  3. Step 3: Cross multiply
    315,170.40x = 434,935.16 × 171,931.02
  4. Step 4: Simplify right side
    315,170.40x = 74,778,845,692.66
  5. Step 5: Solve for x
    x = 74,778,845,692.66/315,170.40
  6. Step 6: Final answer
    x = 237,264.81

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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.