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Finding the Fourth Proportional to 287,970.58, 432,019.86 and 110,477.71

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Solution

The fourth proportional to 287,970.58, 432,019.86 and 110,477.71 is: 165,741.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,970.58 : 432,019.86 = 110,477.71 : x
  2. Step 2: Convert to fraction form
    287,970.58/432,019.86 = 110,477.71/x
  3. Step 3: Cross multiply
    287,970.58x = 432,019.86 × 110,477.71
  4. Step 4: Simplify right side
    287,970.58x = 47,728,564,807.32
  5. Step 5: Solve for x
    x = 47,728,564,807.32/287,970.58
  6. Step 6: Final answer
    x = 165,741.11

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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.