Home / 208,303.48-287,457.30-112,807.96

Finding the Fourth Proportional to 208,303.48, 287,457.30 and 112,807.96

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Solution

The fourth proportional to 208,303.48, 287,457.30 and 112,807.96 is: 155,674.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,303.48 : 287,457.30 = 112,807.96 : x
  2. Step 2: Convert to fraction form
    208,303.48/287,457.30 = 112,807.96/x
  3. Step 3: Cross multiply
    208,303.48x = 287,457.30 × 112,807.96
  4. Step 4: Simplify right side
    208,303.48x = 32,427,471,600.11
  5. Step 5: Solve for x
    x = 32,427,471,600.11/208,303.48
  6. Step 6: Final answer
    x = 155,674.17

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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.