Home / 472,390.10-651,885.34-257,530.11

Finding the Fourth Proportional to 472,390.10, 651,885.34 and 257,530.11

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Solution

The fourth proportional to 472,390.10, 651,885.34 and 257,530.11 is: 355,384.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,390.10 : 651,885.34 = 257,530.11 : x
  2. Step 2: Convert to fraction form
    472,390.10/651,885.34 = 257,530.11/x
  3. Step 3: Cross multiply
    472,390.10x = 651,885.34 × 257,530.11
  4. Step 4: Simplify right side
    472,390.10x = 167,880,103,317.59
  5. Step 5: Solve for x
    x = 167,880,103,317.59/472,390.10
  6. Step 6: Final answer
    x = 355,384.47

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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.