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Finding the Fourth Proportional to 368,518.80, 508,549.86 and 207,373.76

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Solution

The fourth proportional to 368,518.80, 508,549.86 and 207,373.76 is: 286,172.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,518.80 : 508,549.86 = 207,373.76 : x
  2. Step 2: Convert to fraction form
    368,518.80/508,549.86 = 207,373.76/x
  3. Step 3: Cross multiply
    368,518.80x = 508,549.86 × 207,373.76
  4. Step 4: Simplify right side
    368,518.80x = 105,459,896,615.67
  5. Step 5: Solve for x
    x = 105,459,896,615.67/368,518.80
  6. Step 6: Final answer
    x = 286,172.37

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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.