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Finding the Fourth Proportional to 259,378.34, 357,969.62 and 152,038.56

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Solution

The fourth proportional to 259,378.34, 357,969.62 and 152,038.56 is: 209,829.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,378.34 : 357,969.62 = 152,038.56 : x
  2. Step 2: Convert to fraction form
    259,378.34/357,969.62 = 152,038.56/x
  3. Step 3: Cross multiply
    259,378.34x = 357,969.62 × 152,038.56
  4. Step 4: Simplify right side
    259,378.34x = 54,425,185,548.55
  5. Step 5: Solve for x
    x = 54,425,185,548.55/259,378.34
  6. Step 6: Final answer
    x = 209,829.34

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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.