Home / 208,921.95-288,312.74-113,426.60

Finding the Fourth Proportional to 208,921.95, 288,312.74 and 113,426.60

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Solution

The fourth proportional to 208,921.95, 288,312.74 and 113,426.60 is: 156,528.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,921.95 : 288,312.74 = 113,426.60 : x
  2. Step 2: Convert to fraction form
    208,921.95/288,312.74 = 113,426.60/x
  3. Step 3: Cross multiply
    208,921.95x = 288,312.74 × 113,426.60
  4. Step 4: Simplify right side
    208,921.95x = 32,702,331,826.19
  5. Step 5: Solve for x
    x = 32,702,331,826.19/208,921.95
  6. Step 6: Final answer
    x = 156,528.94

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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.