Home / 208,368.72-287,548.56-112,875.84

Finding the Fourth Proportional to 208,368.72, 287,548.56 and 112,875.84

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Solution

The fourth proportional to 208,368.72, 287,548.56 and 112,875.84 is: 155,768.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,368.72 : 287,548.56 = 112,875.84 : x
  2. Step 2: Convert to fraction form
    208,368.72/287,548.56 = 112,875.84/x
  3. Step 3: Cross multiply
    208,368.72x = 287,548.56 × 112,875.84
  4. Step 4: Simplify right side
    208,368.72x = 32,457,285,250.79
  5. Step 5: Solve for x
    x = 32,457,285,250.79/208,368.72
  6. Step 6: Final answer
    x = 155,768.51

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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.