Home / 314,715.51-472,291.28-125,156.45

Finding the Fourth Proportional to 314,715.51, 472,291.28 and 125,156.45

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Solution

The fourth proportional to 314,715.51, 472,291.28 and 125,156.45 is: 187,821.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,715.51 : 472,291.28 = 125,156.45 : x
  2. Step 2: Convert to fraction form
    314,715.51/472,291.28 = 125,156.45/x
  3. Step 3: Cross multiply
    314,715.51x = 472,291.28 × 125,156.45
  4. Step 4: Simplify right side
    314,715.51x = 59,110,299,970.76
  5. Step 5: Solve for x
    x = 59,110,299,970.76/314,715.51
  6. Step 6: Final answer
    x = 187,821.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.