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Finding the Fourth Proportional to 434,303.25, 599,363.09 and 243,378.15

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Solution

The fourth proportional to 434,303.25, 599,363.09 and 243,378.15 is: 335,875.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,303.25 : 599,363.09 = 243,378.15 : x
  2. Step 2: Convert to fraction form
    434,303.25/599,363.09 = 243,378.15/x
  3. Step 3: Cross multiply
    434,303.25x = 599,363.09 × 243,378.15
  4. Step 4: Simplify right side
    434,303.25x = 145,871,878,805.59
  5. Step 5: Solve for x
    x = 145,871,878,805.59/434,303.25
  6. Step 6: Final answer
    x = 335,875.63

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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.