Home / 208,263.42-287,403.12-112,770.40

Finding the Fourth Proportional to 208,263.42, 287,403.12 and 112,770.40

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Solution

The fourth proportional to 208,263.42, 287,403.12 and 112,770.40 is: 155,622.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,263.42 : 287,403.12 = 112,770.40 : x
  2. Step 2: Convert to fraction form
    208,263.42/287,403.12 = 112,770.40/x
  3. Step 3: Cross multiply
    208,263.42x = 287,403.12 × 112,770.40
  4. Step 4: Simplify right side
    208,263.42x = 32,410,564,803.65
  5. Step 5: Solve for x
    x = 32,410,564,803.65/208,263.42
  6. Step 6: Final answer
    x = 155,622.94

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1.5x scale

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.