Home / 371,417.34-513,036.70-307,146.18

Finding the Fourth Proportional to 371,417.34, 513,036.70 and 307,146.18

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Solution

The fourth proportional to 371,417.34, 513,036.70 and 307,146.18 is: 424,259.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,417.34 : 513,036.70 = 307,146.18 : x
  2. Step 2: Convert to fraction form
    371,417.34/513,036.70 = 307,146.18/x
  3. Step 3: Cross multiply
    371,417.34x = 513,036.70 × 307,146.18
  4. Step 4: Simplify right side
    371,417.34x = 157,577,262,604.81
  5. Step 5: Solve for x
    x = 157,577,262,604.81/371,417.34
  6. Step 6: Final answer
    x = 424,259.31

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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.