Home / 388,935.42-583,403.22-122,716.74

Finding the Fourth Proportional to 388,935.42, 583,403.22 and 122,716.74

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Solution

The fourth proportional to 388,935.42, 583,403.22 and 122,716.74 is: 184,075.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,935.42 : 583,403.22 = 122,716.74 : x
  2. Step 2: Convert to fraction form
    388,935.42/583,403.22 = 122,716.74/x
  3. Step 3: Cross multiply
    388,935.42x = 583,403.22 × 122,716.74
  4. Step 4: Simplify right side
    388,935.42x = 71,593,341,263.90
  5. Step 5: Solve for x
    x = 71,593,341,263.90/388,935.42
  6. Step 6: Final answer
    x = 184,075.14

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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.