Home / 208,368.40-287,549.75-112,875.03

Finding the Fourth Proportional to 208,368.40, 287,549.75 and 112,875.03

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Solution

The fourth proportional to 208,368.40, 287,549.75 and 112,875.03 is: 155,768.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,368.40 : 287,549.75 = 112,875.03 : x
  2. Step 2: Convert to fraction form
    208,368.40/287,549.75 = 112,875.03/x
  3. Step 3: Cross multiply
    208,368.40x = 287,549.75 × 112,875.03
  4. Step 4: Simplify right side
    208,368.40x = 32,457,186,657.74
  5. Step 5: Solve for x
    x = 32,457,186,657.74/208,368.40
  6. Step 6: Final answer
    x = 155,768.28

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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.