Home / 349,923.50-524,963.01-128,307.50

Finding the Fourth Proportional to 349,923.50, 524,963.01 and 128,307.50

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Solution

The fourth proportional to 349,923.50, 524,963.01 and 128,307.50 is: 192,489.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,923.50 : 524,963.01 = 128,307.50 : x
  2. Step 2: Convert to fraction form
    349,923.50/524,963.01 = 128,307.50/x
  3. Step 3: Cross multiply
    349,923.50x = 524,963.01 × 128,307.50
  4. Step 4: Simplify right side
    349,923.50x = 67,356,691,405.58
  5. Step 5: Solve for x
    x = 67,356,691,405.58/349,923.50
  6. Step 6: Final answer
    x = 192,489.76

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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.