Home / 208,307.21-287,248.96-178,192.22

Finding the Fourth Proportional to 208,307.21, 287,248.96 and 178,192.22

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Solution

The fourth proportional to 208,307.21, 287,248.96 and 178,192.22 is: 245,721.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,307.21 : 287,248.96 = 178,192.22 : x
  2. Step 2: Convert to fraction form
    208,307.21/287,248.96 = 178,192.22/x
  3. Step 3: Cross multiply
    208,307.21x = 287,248.96 × 178,192.22
  4. Step 4: Simplify right side
    208,307.21x = 51,185,529,875.09
  5. Step 5: Solve for x
    x = 51,185,529,875.09/208,307.21
  6. Step 6: Final answer
    x = 245,721.35

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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.