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Finding the Fourth Proportional to 255,456.84, 352,526.94 and 142,280.40

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Solution

The fourth proportional to 255,456.84, 352,526.94 and 142,280.40 is: 196,345.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,456.84 : 352,526.94 = 142,280.40 : x
  2. Step 2: Convert to fraction form
    255,456.84/352,526.94 = 142,280.40/x
  3. Step 3: Cross multiply
    255,456.84x = 352,526.94 × 142,280.40
  4. Step 4: Simplify right side
    255,456.84x = 50,157,674,033.98
  5. Step 5: Solve for x
    x = 50,157,674,033.98/255,456.84
  6. Step 6: Final answer
    x = 196,345.00

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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.