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Finding the Fourth Proportional to 315,726.77, 473,436.65 and 105,293.63

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Solution

The fourth proportional to 315,726.77, 473,436.65 and 105,293.63 is: 157,889.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,726.77 : 473,436.65 = 105,293.63 : x
  2. Step 2: Convert to fraction form
    315,726.77/473,436.65 = 105,293.63/x
  3. Step 3: Cross multiply
    315,726.77x = 473,436.65 × 105,293.63
  4. Step 4: Simplify right side
    315,726.77x = 49,849,860,559.89
  5. Step 5: Solve for x
    x = 49,849,860,559.89/315,726.77
  6. Step 6: Final answer
    x = 157,889.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.