Home / 315,716.48-473,571.12-91,069.50

Finding the Fourth Proportional to 315,716.48, 473,571.12 and 91,069.50

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Solution

The fourth proportional to 315,716.48, 473,571.12 and 91,069.50 is: 136,603.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,716.48 : 473,571.12 = 91,069.50 : x
  2. Step 2: Convert to fraction form
    315,716.48/473,571.12 = 91,069.50/x
  3. Step 3: Cross multiply
    315,716.48x = 473,571.12 × 91,069.50
  4. Step 4: Simplify right side
    315,716.48x = 43,127,885,841.42
  5. Step 5: Solve for x
    x = 43,127,885,841.42/315,716.48
  6. Step 6: Final answer
    x = 136,603.21

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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.