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Finding the Fourth Proportional to 290,703.67, 401,193.51 and 174,421.50

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Solution

The fourth proportional to 290,703.67, 401,193.51 and 174,421.50 is: 240,715.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,703.67 : 401,193.51 = 174,421.50 : x
  2. Step 2: Convert to fraction form
    290,703.67/401,193.51 = 174,421.50/x
  3. Step 3: Cross multiply
    290,703.67x = 401,193.51 × 174,421.50
  4. Step 4: Simplify right side
    290,703.67x = 69,976,773,804.47
  5. Step 5: Solve for x
    x = 69,976,773,804.47/290,703.67
  6. Step 6: Final answer
    x = 240,715.14

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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.