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Finding the Fourth Proportional to 450,362.60, 621,495.78 and 249,160.04

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Solution

The fourth proportional to 450,362.60, 621,495.78 and 249,160.04 is: 343,838.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,362.60 : 621,495.78 = 249,160.04 : x
  2. Step 2: Convert to fraction form
    450,362.60/621,495.78 = 249,160.04/x
  3. Step 3: Cross multiply
    450,362.60x = 621,495.78 × 249,160.04
  4. Step 4: Simplify right side
    450,362.60x = 154,851,913,404.63
  5. Step 5: Solve for x
    x = 154,851,913,404.63/450,362.60
  6. Step 6: Final answer
    x = 343,838.31

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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.