Home / 208,333.36-287,311.08-136,686.16

Finding the Fourth Proportional to 208,333.36, 287,311.08 and 136,686.16

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Solution

The fourth proportional to 208,333.36, 287,311.08 and 136,686.16 is: 188,502.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,333.36 : 287,311.08 = 136,686.16 : x
  2. Step 2: Convert to fraction form
    208,333.36/287,311.08 = 136,686.16/x
  3. Step 3: Cross multiply
    208,333.36x = 287,311.08 × 136,686.16
  4. Step 4: Simplify right side
    208,333.36x = 39,271,448,250.65
  5. Step 5: Solve for x
    x = 39,271,448,250.65/208,333.36
  6. Step 6: Final answer
    x = 188,502.93

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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.