Home / 208,000.08-287,038.98-112,506.57

Finding the Fourth Proportional to 208,000.08, 287,038.98 and 112,506.57

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Solution

The fourth proportional to 208,000.08, 287,038.98 and 112,506.57 is: 155,258.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,000.08 : 287,038.98 = 112,506.57 : x
  2. Step 2: Convert to fraction form
    208,000.08/287,038.98 = 112,506.57/x
  3. Step 3: Cross multiply
    208,000.08x = 287,038.98 × 112,506.57
  4. Step 4: Simplify right side
    208,000.08x = 32,293,771,096.10
  5. Step 5: Solve for x
    x = 32,293,771,096.10/208,000.08
  6. Step 6: Final answer
    x = 155,258.46

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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.