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Finding the Fourth Proportional to 448,222.68, 618,547.31 and 247,018.68

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Solution

The fourth proportional to 448,222.68, 618,547.31 and 247,018.68 is: 340,885.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,222.68 : 618,547.31 = 247,018.68 : x
  2. Step 2: Convert to fraction form
    448,222.68/618,547.31 = 247,018.68/x
  3. Step 3: Cross multiply
    448,222.68x = 618,547.31 × 247,018.68
  4. Step 4: Simplify right side
    448,222.68x = 152,792,738,798.66
  5. Step 5: Solve for x
    x = 152,792,738,798.66/448,222.68
  6. Step 6: Final answer
    x = 340,885.78

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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.